Banana Sheet Cake - cooking recipe

Ingredients

2 sticks butter
1/2 c. water
2 c. sugar
2 c. flour
1/2 tsp. soda
1/4 c. sour milk
1 c. mashed banana
walnuts (optional)

Preparation

Bring first 2 ingredients to a boil.
Add remaining ingredients.
Bake at 350\u00b0 for 20 minutes; cool before frosting.